Convert ModuleProvder to generic providers API

Convert all of the callers of ModuleProvider/ModuleHasProvider to use the
type-safe android.SingletonModuleProvider API.

Bug: 316410648
Test: builds
Change-Id: I6f11638546b64749e451cebbf33140248dc1d193
diff --git a/java/system_modules_test.go b/java/system_modules_test.go
index 7b5a386..2ceca5d 100644
--- a/java/system_modules_test.go
+++ b/java/system_modules_test.go
@@ -24,7 +24,7 @@
 	paths := []string{}
 	for _, moduleName := range moduleNames {
 		module := result.Module(moduleName, "android_common")
-		info := result.ModuleProvider(module, JavaInfoProvider).(JavaInfo)
+		info, _ := android.SingletonModuleProvider(result, module, JavaInfoProvider)
 		paths = append(paths, info.HeaderJars.RelativeToTop().Strings()...)
 	}
 	return paths